hi all
last week my disco overheated due to a water pump failure. fitted a new pump and has been fine.
until now that is. on my way home tonight the engine overheated again. i stopped and checked water, all there but i checked the thermo housing and it was dry, but as soon as i opened the expansion tank and started the engine the expansion level went down and the thermo housing filled up.
the problem is there was lots bubbles so i let it run to try to clear the air 15 liters of water later and still as bad.
could this be a problem with the head. it has had a new head gasket about 3 months ago.
puzzled
ken